Comparative Analysis of Voice Codecs Over Different Environment Scenarios in VoIP

Gupta, Nishant; Kumar, Naresh; Kumar, Harish

doi:10.1109/iccons.2018.8663241

Cited by 17 publications

(16 citation statements)

References 10 publications

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“…The wasted bandwidth is calculated by dividing the protocol size over packet size (payload +protocol). For example, the wasted bandwidth caused when using the ITTP protocol, which is our concern in this article, is up to 72.2 % with 10 bytes codec frame size [16,17]. Fig.…”

Section: Introductionmentioning

confidence: 88%

ITTP-PG: A Novel Grouping Technique to Enhance VoIP Service Bandwidth Utilization

Al-Tahrawi¹,

Abulhaj²,

Alrabanah³

et al. 2020

IJACSA

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Recently, the field of telecommunications started to migrate to Voice over Internet Protocol (VoIP) service. VoIP service applications produce packets with short payload sizes to reduce packetization delay. That is, increasing the preamble size and expends the network link bandwidth. Packet grouping is a technique to enhance the employment of network link bandwidth. Numerous grouping techniques are suggested to enhance link bandwidth employment when using RTP/UDP protocols. Unlike previous research, this article suggests a packet grouping technique that works over the Internet Telephony Transport Protocol (ITTP), not RTP/UDP. This technique is called ITTP Packet Grouping (ITTP-PG). The ITTP-PG technique groups VoIP packets, which exist in the same route, in a single ITTP/IP preamble instead of an ITTP/IP preamble to each packet. Consequently, preamble size is diminished and network link bandwidth is saved. ITTP-PG also adds 3-byte runt-preamble to each packet to distinguish the grouped packets. The suggested ITTP-PG technique is simulated and compared with the conventional ITTP protocol (without grouping) using three elements, namely, the number of concurrent VoIP calls, preamble overhead, and bandwidth usage. Based on all these elements, the ITTP-PG technique outperforms the conventional ITTP protocol. For example, the result shows that bandwidth usage improved by up to 45.9% in the tested cases.

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Section: Introductionmentioning

confidence: 88%

ITTP-PG: A Novel Grouping Technique to Enhance VoIP Service Bandwidth Utilization

Al-Tahrawi¹,

Abulhaj²,

Alrabanah³

et al. 2020

IJACSA

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“…The bandwidth consumed by the packet header is calculated by dividing the header size on the total packet size. [10,12,13]. As we can see, the wasted bandwidth when using the IPv6 protocol is considerably large.…”

Section: Introductionmentioning

confidence: 91%

An Efficient Method to Enhance IP Telephony Performance in IPV6 Networks

Abualhaj

Al-Khatib

Shambour

et al. 2021

Cybernetics and Information Technologies

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IP telephony have played an essential role during the COVID 19 pandemic lockdown. One of the issues that lower the service level of the IP telephony solutions is the inefficient bandwidth exploitation. This paper proposes a Smallerize/Zeroize (SmlZr) method to enhance bandwidth exploitation. The SmlZr method is explicitly designed for the P2P IP telephony calls over IPv6 networks. The essence concept of the proposed method is to use the unnecessary fields in the header to keep the voice media of the packet. Doing so leads to smallerize or zeroize the packet payload and, thus, enhance the bandwidth exploitation. The SmlZr method has outperformed the RTP method for all the comparison parameters. For instance, the SmlZr method shrinks the bandwidth by 25% compared to the RTP protocol. Bandwidth saving is helpful for P2P IP telephony calls because it alleviates the traffic load. Thus, improve the call capacity boosts the call clarity.

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“…On the other hand, the VoIP codecs produce a very small voice frame (VoIP packet payload) between 10 and 30 bytes. For example, the G.726 produces 30 bytes voice frame, G.723.1 -20 bytes, the LPC -14 bytes, and G.729 -10 bytes [14][15][16]. In certain cases, the VoIP packet payload consists of more than one voice frame.…”

Section: Introductionmentioning

confidence: 99%

Contracting VoIP Packet Payload Down to Zero

Abualhaj

Al-Tahrawi

Al-Zyoud

2021

Cybernetics and Information Technologies

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The inefficient use of the IP network bandwidth is a fundamental issue that restricts the exponential spreading of Voice over IP (VoIP). The primary reason for this is the big header size of the VoIP packet. In this paper, we propose a method, called Short Voice Frame (SVF), that addresses the big header size of the VoIP packet. The main idea of the SVF method is to make effective use of the VoIP packet header fields that are unneeded to the VoIP technology. In particular, these fields will be used for temporarily buffering the voice frame (VoIP packet payload) data. This will make the VoIP packet payload short or even zero in some cases. The performance evaluation of the proposed SVF method showed that the use of the IP network bandwidth has improved by up to 28.3% when using the G.723.1 codec.

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Comparative Analysis of Voice Codecs Over Different Environment Scenarios in VoIP

Cited by 17 publications

References 10 publications

ITTP-PG: A Novel Grouping Technique to Enhance VoIP Service Bandwidth Utilization

ITTP-PG: A Novel Grouping Technique to Enhance VoIP Service Bandwidth Utilization

An Efficient Method to Enhance IP Telephony Performance in IPV6 Networks

Contracting VoIP Packet Payload Down to Zero

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